ssm框架整合+Ajax异步验证-白红宇

ssm框架整合+Ajax异步验证

阅读量：5047 次

发布时间：2019-06-12

本文共 17977 字，大约阅读时间需要 59 分钟。

SSM框架是目前企业比较常用的框架之一,它的灵活性、安全性相对于SSH有一定的优势。说到这，谈谈SSM和SSH的不同点，这也是企业常考初级程序员的面试题之一。说到这两套框架的不同，主要是持久层框架Hibernate和MyBatis的不同和控制层框架SpringMVC和Struts2的不同。

Hibernate和MyBatis的不同主要体现这么几点：

1.自动化和半自动化:Hibernate的SQL语句自动生成不需要程序员编写，而MyBatis需要编写。

2.学习上:Hibernate入门比较难，而MyBatis入门非常容易。

3.可移植性：Hibernate可移植性好，对应不同的数据库通过改变方言可以直接用，而MyBatis可移植性差，对应不同的数据库需要书写不同的SQL语句

4.关系维护上：Hibernate映射关系复杂，而MyBatis相对简单。

5.缓存:Hibernate有更好的二级缓存，可以使用第三方缓存，而MyBatis本身缓存就不好。

SpringMVC和Struts2的不同点如下：

1.入口不同：SpringMVC的入口是Servlet，Struts的入口是Filter。

2.性能上：spring3 mvc是方法级别的拦截，拦截到方法后根据参数上的注解，把request数据注入进去，在spring3 mvc中，一个方法对应一个request上下文。而struts2框架是类级别的拦截，每次来了请求就创建一个Action，然后调用setter getter方法把request中的数据注入；struts2实际上是通 setter getter方法与request打交道的；struts2中，一个Action对象对应一个request上下文。

3.拦截器实现机制上，Struts2有以自己的interceptor机制，SpringMVC用的是独立的AOP方式，这样导致Struts2的配置文件量还是比SpringMVC大。

4. 设计思想上，Struts2更加符合OOP的编程思想， SpringMVC就比较谨慎，在servlet上扩展。

5.SpringMVC集成了Ajax，使用非常方便，只需一个注解@ResponseBody就可以实现，然后直接返回响应文本即可，而Struts2拦截器集成了Ajax，在Action中处理时一般必须安装插件或者自己写代码集成进去，使用起来也相对不方便。

6.Spring MVC和Spring是无缝的。从这个项目的管理和安全上也比Struts2高（当然Struts2也可以通过不同的目录结构和相关配置做到SpringMVC一样的效果，但是需要xml配置的地方不少）。

第一步：导包（这一步只要成功，可以说成功了80%）

aopalliance.jaraspectjweaver-1.5.4.jarcommons-fileupload-1.3.1.jarcommons-io-2.4.jarcommons-logging-1.1.3.jarfastjson-1.2.13.jarjstl-1.2.jarmail.jarmybatis-3.3.1.jarmybatis-spring-1.2.4.jarmysql-connector-java-5.1.26-bin.jarspring-aop-4.2.3.RELEASE.jarspring-aspects-4.2.3.RELEASE.jarspring-beans-4.2.3.RELEASE.jarspring-context-4.2.3.RELEASE.jarspring-context-support-4.2.3.RELEASE.jarspring-core-4.2.3.RELEASE.jarspring-expression-4.2.3.RELEASE.jarspring-instrument-4.2.3.RELEASE.jarspring-instrument-tomcat-4.2.3.RELEASE.jarspring-jdbc-4.2.3.RELEASE.jarspring-jms-4.2.3.RELEASE.jarspring-messaging-4.2.3.RELEASE.jarspring-orm-4.2.3.RELEASE.jarspring-oxm-4.2.3.RELEASE.jarspring-test-4.2.3.RELEASE.jarspring-tx-4.2.3.RELEASE.jarspring-web-4.2.3.RELEASE.jarspring-webmvc-4.2.3.RELEASE.jarspring-webmvc-portlet-4.2.3.RELEASE.jarspring-websocket-4.2.3.RELEASE.jar

第二步：写Spring主配置文件以及MyBatis主配置文件

第三步：创建实体类

package com.blog.entity;public class User {		private Integer Id;	private String email;	private String userName;	private String password;	private Integer power;	public Integer getId() {		return Id;	}	public void setId(Integer id) {		Id = id;	}	public String getEmail() {		return email;	}	public void setEmail(String email) {		this.email = email;	}	public String getUserName() {		return userName;	}	public void setUserName(String userName) {		this.userName = userName;	}	public String getPassword() {		return password;	}	public void setPassword(String password) {		this.password = password;	}	public Integer getPower() {		return power;	}	public void setPower(Integer power) {		this.power = power;	}		}

第四步：创建接口以及SQL映射文件(通过动态代理的方式绑定）

package com.blog.mapper;import org.apache.ibatis.annotations.Param;import com.blog.entity.User;public interface UserMapper {		User Login(String email);		User Login2(@Param("email") String email,@Param("password") String password);}

第五步：创建Service接口以及实现类

package com.blog.service;import com.blog.entity.User;public interface UserService {		User Login(String email);	User Login2(String email,String password);		}

package com.blog.service.impl;import javax.annotation.Resource;import org.springframework.stereotype.Service;import com.blog.entity.User;import com.blog.mapper.UserMapper;import com.blog.service.UserService;@Servicepublic class UserServiceImpl implements UserService{    @Resource    private UserMapper userMapper;            @Override    public User Login(String email) {        // TODO Auto-generated method stub        return userMapper.Login(email);    }    @Override    public User Login2(String email, String password) {        // TODO Auto-generated method stub        return userMapper.Login2(email, password);    }        }

第六步：写测试类测试上述方法

package com.blog.test;import javax.annotation.Resource;import org.junit.Test;import org.junit.runner.RunWith;import org.springframework.test.context.ContextConfiguration;import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;import com.blog.entity.User;import com.blog.mapper.UserMapper;@RunWith(SpringJUnit4ClassRunner.class)@ContextConfiguration("classpath:applicationContext.xml")public class testMapper {    @Resource    private UserMapper userMapper;                @Test    public void testName() throws Exception {                User user=userMapper.Login("1933108196@qq.com");        System.out.println(user);                                     }        @Test    public void testName2() throws Exception {                User user=userMapper.Login2("1933108196@qq.com", "kangri123");        System.out.println(user.getUserName());                                    }    }

第七步：测试成功后，开始设置web.xml


     
       
      
       Demo_Model
          
          
        
       
        contextConfigLocation
         
       
        classpath:applicationContext.xml
         
        
          
        
       
        org.springframework.web.context.ContextLoaderListener
         
          
       
       
       
        CharacterEncoding
        
       
        org.springframework.web.filter.CharacterEncodingFilter
        
        
        
         encoding
         
        
         UTF-8
         
        
        
       
       
        CharacterEncoding
        
       
        /*
        
             
        
       
        springmvc
         
       
        org.springframework.web.servlet.DispatcherServlet
         
         
        
         contextConfigLocation
          
        
         classpath:springmvc.xml
          
         
          
        
       
        springmvc
         
       
        *.do
         
         
                
          
       
        Login.jsp

第八步：配置springmvc.xml(与Spring框架无缝整合)

配置完毕后记得添加Controller 相关的类

package com.blog.controller;import java.io.IOException;import java.io.PrintWriter;import java.util.HashMap;import javax.annotation.Resource;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import javax.servlet.http.HttpSession;import org.springframework.stereotype.Controller;import org.springframework.ui.Model;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.ResponseBody;import com.alibaba.fastjson.JSON;import com.blog.entity.User;import com.blog.service.UserService;@Controllerpublic class UserController {	@Resource	private UserService userService;		@RequestMapping(value="emailCheck2.do",method=RequestMethod.POST)	public void emailCheck2(String email,HttpServletResponse response,HttpServletRequest request,HttpSession session,Model model) throws IOException{		response.setContentType("text/html;charset=utf-8");		PrintWriter out=response.getWriter();		User user=userService.Login(email);		if(user!=null){			out.println("邮箱已经存在");		}else{			out.println("邮箱可以使用");		}				out.flush();		out.close();			}			@RequestMapping(value="emailCheck.do",method=RequestMethod.POST)	public void emailCheck(String email,HttpServletResponse response,HttpServletRequest request,HttpSession session,Model model) throws IOException{		response.setContentType("text/html;charset=utf-8");		PrintWriter out=response.getWriter();		User user=userService.Login(email);		if(user!=null){			out.println("邮箱正确");		}else{			out.println("邮箱错误");		}				out.flush();		out.close();			}		@RequestMapping(value="passCheck.do",method=RequestMethod.POST)	public void emailCheck(String email,String password,HttpServletResponse response,HttpServletRequest request,HttpSession session,Model model) throws IOException{		response.setContentType("text/html;charset=utf-8");		PrintWriter out=response.getWriter();		User user=userService.Login2(email,password);		if(user!=null){			out.println("密码正确");	        		}else{			out.println("密码错误");		}				out.flush();		out.close();			}	     @RequestMapping(value="LoginCheck.do",method=RequestMethod.POST)	 public String LoginCheck(String email,String password,HttpServletResponse response,HttpServletRequest request,HttpSession session,Model model){    	 User user=userService.Login2(email, password);    	 if(user==null){    		 request.setAttribute("error", "用户名或密码不能为空");    		 return "Login";    	 }else{    		     		 model.addAttribute("user", user);    		 return "index";    	 }    	      }		}

第十步：开始启动tomcat，如果控制台无报错信息，说明配置整合成功，反之失败，所以整合过程中一定要仔细

十月 28, 2017 12:06:40 上午 org.apache.tomcat.util.digester.SetPropertiesRule begin警告: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:Demo_Model' did not find a matching property.十月 28, 2017 12:06:40 上午 org.apache.catalina.startup.VersionLoggerListener log信息: Server version:        Apache Tomcat/7.0.82十月 28, 2017 12:06:40 上午 org.apache.catalina.startup.VersionLoggerListener log信息: Server built:          Sep 29 2017 12:23:15 UTC十月 28, 2017 12:06:40 上午 org.apache.catalina.startup.VersionLoggerListener log信息: Server number:         7.0.82.0十月 28, 2017 12:06:40 上午 org.apache.catalina.startup.VersionLoggerListener log信息: OS Name:               Windows 8十月 28, 2017 12:06:40 上午 org.apache.catalina.startup.VersionLoggerListener log信息: OS Version:            6.2十月 28, 2017 12:06:40 上午 org.apache.catalina.startup.VersionLoggerListener log信息: Architecture:          amd64十月 28, 2017 12:06:40 上午 org.apache.catalina.startup.VersionLoggerListener log信息: Java Home:             D:\jdk1.7.0_51\jre十月 28, 2017 12:06:40 上午 org.apache.catalina.startup.VersionLoggerListener log信息: JVM Version:           1.7.0_51-b13十月 28, 2017 12:06:40 上午 org.apache.catalina.startup.VersionLoggerListener log信息: JVM Vendor:            Oracle Corporation十月 28, 2017 12:06:40 上午 org.apache.catalina.startup.VersionLoggerListener log信息: CATALINA_BASE:         D:\Program Files\apache-tomcat-7.0.82-windows-x64\apache-tomcat-7.0.82十月 28, 2017 12:06:40 上午 org.apache.catalina.startup.VersionLoggerListener log信息: CATALINA_HOME:         D:\Program Files\apache-tomcat-7.0.82-windows-x64\apache-tomcat-7.0.82十月 28, 2017 12:06:40 上午 org.apache.catalina.startup.VersionLoggerListener log信息: Command line argument: -Dcatalina.base=D:\Program Files\apache-tomcat-7.0.82-windows-x64\apache-tomcat-7.0.82十月 28, 2017 12:06:40 上午 org.apache.catalina.startup.VersionLoggerListener log信息: Command line argument: -Dcatalina.home=D:\Program Files\apache-tomcat-7.0.82-windows-x64\apache-tomcat-7.0.82十月 28, 2017 12:06:40 上午 org.apache.catalina.startup.VersionLoggerListener log信息: Command line argument: -Dwtp.deploy=D:\Program Files\apache-tomcat-7.0.82-windows-x64\apache-tomcat-7.0.82\wtpwebapps十月 28, 2017 12:06:40 上午 org.apache.catalina.startup.VersionLoggerListener log信息: Command line argument: -Djava.endorsed.dirs=D:\Program Files\apache-tomcat-7.0.82-windows-x64\apache-tomcat-7.0.82\endorsed十月 28, 2017 12:06:40 上午 org.apache.catalina.startup.VersionLoggerListener log信息: Command line argument: -Dfile.encoding=GBK十月 28, 2017 12:06:40 上午 org.apache.catalina.core.AprLifecycleListener lifecycleEvent信息: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: D:\jdk1.7.0_51\bin;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;D:/jdk1.7.0_51/bin/../jre/bin/server;D:/jdk1.7.0_51/bin/../jre/bin;D:/jdk1.7.0_51/bin/../jre/lib/amd64;D:\jdk1.7.0_51\bin;D:\Maven\apache-maven-3.3.9\bin;C:\Program Files\Git\cmd;C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static;D:\Program Files\MySQL\MySQL Server 5.7\bin;C:\Program Files\VisualSVN Server\bin;C:\Program Files\TortoiseSVN\bin;D:\Program Files\mongodb-win32-x86_64-2.4.3\bin;C:\Users\tracholar\AppData\Roaming\cabal\bin;C:\Users\tracholar\AppData\Roaming\npm;D:\Program Files\userbin;D:\wamp64\bin\php\php5.6.16;D:\texlive\2015\bin\win32;D:\Program Files\eclipse;;.十月 28, 2017 12:06:40 上午 org.apache.coyote.AbstractProtocol init信息: Initializing ProtocolHandler ["http-bio-8080"]十月 28, 2017 12:06:40 上午 org.apache.coyote.AbstractProtocol init信息: Initializing ProtocolHandler ["ajp-bio-8009"]十月 28, 2017 12:06:40 上午 org.apache.catalina.startup.Catalina load信息: Initialization processed in 1592 ms十月 28, 2017 12:06:40 上午 org.apache.catalina.core.StandardService startInternal信息: Starting service Catalina十月 28, 2017 12:06:41 上午 org.apache.catalina.core.StandardEngine startInternal信息: Starting Servlet Engine: Apache Tomcat/7.0.82十月 28, 2017 12:06:46 上午 org.apache.catalina.startup.TldConfig execute信息: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.十月 28, 2017 12:06:46 上午 org.apache.catalina.core.ApplicationContext log信息: No Spring WebApplicationInitializer types detected on classpath十月 28, 2017 12:06:46 上午 org.apache.catalina.core.ApplicationContext log信息: Initializing Spring root WebApplicationContext十月 28, 2017 12:06:46 上午 org.springframework.web.context.ContextLoader initWebApplicationContext信息: Root WebApplicationContext: initialization started十月 28, 2017 12:06:46 上午 org.springframework.web.context.support.XmlWebApplicationContext prepareRefresh信息: Refreshing Root WebApplicationContext: startup date [Sat Oct 28 00:06:46 CST 2017]; root of context hierarchy十月 28, 2017 12:06:46 上午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions信息: Loading XML bean definitions from class path resource [applicationContext.xml]十月 28, 2017 12:06:49 上午 org.springframework.web.context.ContextLoader initWebApplicationContext信息: Root WebApplicationContext: initialization completed in 2875 ms十月 28, 2017 12:06:49 上午 org.apache.catalina.startup.HostConfig deployDirectory信息: Deploying web application directory D:\Program Files\apache-tomcat-7.0.82-windows-x64\apache-tomcat-7.0.82\webapps\docs十月 28, 2017 12:06:49 上午 org.apache.catalina.startup.HostConfig deployDirectory信息: Deployment of web application directory D:\Program Files\apache-tomcat-7.0.82-windows-x64\apache-tomcat-7.0.82\webapps\docs has finished in 234 ms十月 28, 2017 12:06:49 上午 org.apache.catalina.startup.HostConfig deployDirectory信息: Deploying web application directory D:\Program Files\apache-tomcat-7.0.82-windows-x64\apache-tomcat-7.0.82\webapps\examples十月 28, 2017 12:06:51 上午 org.apache.catalina.core.ApplicationContext log信息: ContextListener: contextInitialized()十月 28, 2017 12:06:51 上午 org.apache.catalina.core.ApplicationContext log信息: SessionListener: contextInitialized()十月 28, 2017 12:06:51 上午 org.apache.catalina.core.ApplicationContext log信息: ContextListener: attributeAdded('org.apache.jasper.compiler.TldLocationsCache', 'org.apache.jasper.compiler.TldLocationsCache@a8e6df5')十月 28, 2017 12:06:51 上午 org.apache.catalina.startup.HostConfig deployDirectory信息: Deployment of web application directory D:\Program Files\apache-tomcat-7.0.82-windows-x64\apache-tomcat-7.0.82\webapps\examples has finished in 1,568 ms十月 28, 2017 12:06:51 上午 org.apache.catalina.startup.HostConfig deployDirectory信息: Deploying web application directory D:\Program Files\apache-tomcat-7.0.82-windows-x64\apache-tomcat-7.0.82\webapps\host-manager十月 28, 2017 12:06:51 上午 org.apache.catalina.startup.HostConfig deployDirectory信息: Deployment of web application directory D:\Program Files\apache-tomcat-7.0.82-windows-x64\apache-tomcat-7.0.82\webapps\host-manager has finished in 421 ms十月 28, 2017 12:06:51 上午 org.apache.catalina.startup.HostConfig deployDirectory信息: Deploying web application directory D:\Program Files\apache-tomcat-7.0.82-windows-x64\apache-tomcat-7.0.82\webapps\manager十月 28, 2017 12:06:51 上午 org.apache.catalina.startup.HostConfig deployDirectory信息: Deployment of web application directory D:\Program Files\apache-tomcat-7.0.82-windows-x64\apache-tomcat-7.0.82\webapps\manager has finished in 141 ms十月 28, 2017 12:06:51 上午 org.apache.catalina.startup.HostConfig deployDirectory信息: Deploying web application directory D:\Program Files\apache-tomcat-7.0.82-windows-x64\apache-tomcat-7.0.82\webapps\ROOT十月 28, 2017 12:06:51 上午 org.apache.catalina.startup.HostConfig deployDirectory信息: Deployment of web application directory D:\Program Files\apache-tomcat-7.0.82-windows-x64\apache-tomcat-7.0.82\webapps\ROOT has finished in 94 ms十月 28, 2017 12:06:51 上午 org.apache.coyote.AbstractProtocol start信息: Starting ProtocolHandler ["http-bio-8080"]十月 28, 2017 12:06:51 上午 org.apache.coyote.AbstractProtocol start信息: Starting ProtocolHandler ["ajp-bio-8009"]十月 28, 2017 12:06:51 上午 org.apache.catalina.startup.Catalina start信息: Server startup in 11060 ms

接下来开始写登录页面做异步验证,在此之前AJax所需的jQuery插件一定要记得导，导入后，写个alert弹框测试一下，以保证在Ajax和JQuery交互的过程中不会因为插件的问题而报错

<%@ page language="java" contentType="text/html; charset=UTF-8"    pageEncoding="UTF-8"%>
     登录    
             
                 
       ${error}
            
       
                                                               Email:                                                        
                                                       Password:

<%@ page language="java" contentType="text/html; charset=UTF-8"    pageEncoding="UTF-8"%>
     Insert title here${user.userName}

转载于:https://www.cnblogs.com/youcong/p/7745731.html

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